<html>  
    <head>  
        <title>Set Timeout</title>  
        <style>  
            .red_box {background-color: red; width = 20%; height: 100px; border: none;}  
        </style>  
        <script>  
            function show_div(){  
                setTimeout("create_div()", 5000);  
            }  
    
            function create_div(){  
                d = document.createElement('div');  
                d.className = "red_box";  
                document.body.appendChild(d);  
            }  
        </script>  
    </head>  
    <body>  
        <button id = "b" onclick = "show_div()">click</button>  
    </body>  
</html>